clear;
clc;
A = [0 1;-3 -4];
B = [0;1];
C = [2 0];
D=[];
A1 =A';
B1 =C';
C1 =B';
P = [-12+j -12-j];
K = place(A1,B1,P);
G = K';
sys = ss(A-G*C,B,C,D);
step(sys);
grid on;